The blood in your stool may be different colors depending upon where in your colon it is located. For example: Bright red blood in your stool may indicate bleeding in the lower part of the colon.

An expert MD explains what red poop could mean for you, from harmless causes to signs of something more serious.

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But if you also notice oil in your stool, unusual colors like grey ... If you see bright red blood in your stool or you consistently have a fatty stool, you should call your doctor right away ...